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Rational design, synthesis, and evaluation of novel polypharmacological compounds targeting NaV1.5, KV1.5, and K2P channels for atrial fibrillation

Atrial fibrillation (AF) involves electrical remodeling of the atria, with ion channels such as NaV1.5, KV1.5, and TASK-1 playing crucial roles. This study investigates acetamide-based compounds designed as multi-target inhibitors of these ion channels to address AF. Compound 6f emerged as the most...

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Main Authors: Camargo-Ayala, Lorena (Author) , Bedoya, Mauricio (Author) , Dasí, Albert (Author) , Prüser, Merten (Author) , Schütte, Sven (Author) , Prent-Peñaloza, Luis (Author) , Adasme-Carreño, Francisco (Author) , Kiper, Aytuğ (Author) , Rinné, Susanne (Author) , Camargo-Ayala, Paola Andrea (Author) , Peña-Martínez, Paula A. (Author) , Bueno-Orovio, Alfonso (Author) , Varela, Diego (Author) , Wiedmann, Felix Tobias (Author) , Márquez Montesinos, José C. E. (Author) , Mazola, Yuliet (Author) , Venturini, Whitney (Author) , Zúñiga, Rafael (Author) , Zúñiga, Leandro (Author) , Schmidt, Constanze (Author) , Rodriguez, Blanca (Author) , Ravens, Ursula (Author) , Decher, Niels (Author) , Gutiérrez, Margarita (Author) , González, Wendy (Author)
Format: Article (Journal)
Language:English
Published: April 2025
In: The journal of biological chemistry
Year: 2025, Volume: 301, Issue: 4, Pages: 1-24
ISSN:1083-351X
DOI:10.1016/j.jbc.2025.108387
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.jbc.2025.108387
Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0021925825002364
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Author Notes:Lorena Camargo-Ayala, Mauricio Bedoya, Albert Dasí, Merten Prüser, Sven Schütte, Luis Prent-Peñaloza, Francisco Adasme-Carreño, Aytug K. Kiper, Susanne Rinné, Paola Andrea Camargo-Ayala, Paula A. Peña-Martínez, Alfonso Bueno-Orovio, Diego Varela, Felix Wiedmann, José C.E. Márquez Montesinos, Yuliet Mazola, Whitney Venturini, Rafael Zúñiga, Leandro Zúñiga, Constanze Schmidt, Blanca Rodriguez, Ursula Ravens, Niels Decher, Margarita Gutiérrez, and Wendy González
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Summary:Atrial fibrillation (AF) involves electrical remodeling of the atria, with ion channels such as NaV1.5, KV1.5, and TASK-1 playing crucial roles. This study investigates acetamide-based compounds designed as multi-target inhibitors of these ion channels to address AF. Compound 6f emerged as the most potent in the series, demonstrating a strong inhibition of TASK-1 (IC50 ∼ 0.3 μM), a moderate inhibition of NaV1.5 (IC50 ∼ 21.2 μM) and a subtle inhibition of KV1.5 (IC50 ∼ 81.5 μM), alongside unexpected activation of TASK-4 (∼ 40% at 100 μM). Functional assays on human atrial cardiomyocytes from sinus rhythm (SR) and patients with AF revealed that 6f reduced action potential amplitude in SR (indicating NaV1.5 block), while in AF it increased action potential duration (APD), reflecting high affinity for TASK-1. Additionally, 6f caused hyperpolarization of the resting membrane potential in AF cardiomyocytes, consistent with the observed TASK-4 activation. Mathematical modeling further validated its efficacy in reducing AF burden. Pharmacokinetic analyses suggest favorable absorption and low toxicity. These findings identify 6f as a promising multi-target therapeutic candidate for AF management.
Item Description:Im Titel ist der Buchstabe V zweimal und die Ziffer 2 einmal tiefgestellt
Online veröffentlicht: 5. März 2025, Artikelversion: 16. April 2025
Gesehen am 26.06.2025
Physical Description:Online Resource
ISSN:1083-351X
DOI:10.1016/j.jbc.2025.108387

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